Burak Ozdelice

My humble oppinion is smell was (and is still) one of the key communication tool before light or sound. Its root probably goes to billion years back. So it is totally expectable that smell is shaped by very long time process and depends on the living environment. Thus it should be totally normal that races have different smells.

Hi, Imagine that an animal specie saw it kill its enemy after it took a stone from the ground and threw it. And other animals saw that remarkable event. They did start to use same tool after that from generations to generations for centuries. my question is can a behavior be stored in genes? Can a behavior be inherited genetically? I know that when a living creature saw a danger it runs. When we see a danger our body immediatly prepare for that (eyes, muscles, adrenaline etc) how is a behaviour like a "throwing a stone" stored as genetically? what is necessary? thank you.